Internal-combustion engine



Jan. 3, 1928.

` J. F. CRAWFORD INTERNAL COMBUSTION ENGINE Original Filed NQv. 13, 1924 Patented Jan. 3, 1928.

UNITED sine-riasI APATE'Kzlafl OFFICE.

JOI-IN F. CRAWFORD, OF RACINE, WISCONSIN, ASSIGNOR TO JT. I. CASE THRESHING -1VIACHINE.COM1?ANY, .OF RACINE, WISCONSIN, A CORPORATION.v

INTlilRNAL-CO1\lI;BUSTION` ENGINE.

original application 'inea November 13, 1924, serial No. 749,795. Invitedl and thisapplicauon flied oetobr as, 192e.

My invention relates to internal combustionengines, and particularly to the governor and pump thereof, which I associate and operate together in a simple and efficient manner as will more fully appear, and

which improvement is apart of that which tional view of t-hat part of an internal combustion engine to which my improvement is applicable; Fig. 2 ar detail section taken on the dottedline 2-2 in Fig. 1, and Fig. 3 is a detail section on the dottedyline 3-3 in Fig. 1.

In said drawing 5 indicates the crank-case of any desired character, and 6 a fragment of the cylinder-block. The governor is enclosed in a housing, 7, and is of the centrifugal type. A governor-shaft, 8, is mounted in suitable bearings 9, 10, at opposite ends of the housing 7 and extends forwardly therethrough as shown in Fig. 1. Upon said shaft I mount a gear, mesh with and rotated by a cam-shaft gear,

12, or other driving element of the enginev in a well known manner.r Said gear 12 is provided with grooves, 13, in which balls, 14, are fitted, and held in position'by conebearing, 15, the latter being'pressed against the balls by the pressure of a spring, 16, positioned in any desired manner, and acting, through pressure of a governor-arm, as 17, against a thrust bearing, 18, associated with said tion being that vthe balls 14, actuatedby centrifugal force, caused by rotation of gear 12,

move out in grooves 18, thus overcoming to thrust-bearing the spring tension applied 18, and elosevthe usual throttle (not shown) which communicates with the governor arm 17. The governor-shaft 8, as indicated, eX- tends forwardly of the lengine structure for connection with a pump comprising a housing, 20, cover 21, and a rotary impeller 22, said cover having a gland, 23, a water-tight connection for the governor-shaftY 8 being provided by a packing, V24.

It will thus be seen that I provide a. combined governor and pump, the latter requiring no bearings, as the bearings 9, 10, in housing 7 at all times maintain shaft 8 1n 'ner not to affect 12, which is in` cone-bearing, the resultant. operaserial No. 144,793.

proper position for rotating the impeller22.

In the water passage from the radiator, as 26, usually employed, through pump 20 and to the cylinders, several joints requiring packing material are necessary, which packing I install in a manthe A height of. the unit under which packing is placed. For example, if conventional packing was placed between-the pump body 20 and crank-case 5, the pump would vbe raised the thickness of the packing, and upon renewal of packing, if not of proper thickness, the pump height would be changed, `which would be Adetrimental to assemblage and operatioi'i; Therefore, I counterbore a recess, preferably in crank-case 5, or such recess may be formed in any other unit-,to be attached to the case, and insert therein a ring, 28, or other element of suitable material and somewhat larger in depth than the counterbore, so that when the pump or othery unit is clamped upon the crank-case a water-tight joint is provided, and at the same time the metal to metal dimensions of the connected elements are thus maintained.

Iv claim as my invention:

1. In an internal combustion engine, ya housing, agovernor shaft mounted therein, A

a gear-wheel on said shaft for rotatingthe latter, actuating means carried by the gearwheel, means for controlling contact of said actuating means with the gear-wheel, a pump casingon said engine, an impeller in said Vcasing mounted on said shaft,r and means on said engine for driving Vsaid gearwheel to rotate said shaftV and impeller.

2. In an internal combustion engine,l a

indicated at'27, Fig. 1',

housing, a shaft mounted therein and eX- tendmg outwardly therefrom7 a gear-wheel embodying grooves mounted on said shaft, balls in said grooves, a' bearing on said shaft engaging said balls, yielding means for controlling the contact of said bearing in relation to said balls, a pump on the outer end of saidV shaft, and means engaging said gearwheel to rotate said shaft and pump.

- 3. In an internal combustion engine, a

governor housing, a shaft mounted therein,

a gear-wheel on said shaft, a bearing on said shaft, balls between said gear-wheel and said bearing, a-thrustbearing on said shaft engaging said bearing,V yielding means contact-ing` said thrust bearing to control the movementl of said bearing in relation io said balls, a. pump on said shaft, and means engaging said gear-Wheel for rotating Jthe same and said shaft and pump.

4. n `an internal combustion engine, a,r

gove'norrhoueng, a shaft mouned therein and exendng therefrom, governor mechanism embodying actuating means, a governor member, means contacting with the actuating means for controlling the gover no1' membe? mounted on seid shaft, a pumpeaeng at the end o1"l said shaft embodying a Water passage, a @over foy said easing into which said shaft exende, and a gland on Said Shaft removably eonneeedio Said @over 'for manainng packing maueral about said Shaft between said Cover and gland.

5. In an internal combustion engine, ahousng having bearings, a shaft Supported by the bearings, a gealfwheel on the. shaft 20 "ithin said housing, aeuating means adapt# ed `co engage the gear-Wheel, a governor arm, means contacting Wi'h vthe actuating means for Controlling the movement of the governor arm, apump on the outer end of 2 the shaft, and means engaging said gear- Wheel for actuating Said shaft and pump.

n testimony whereof I afx my signature.

J'oHN F. CRAWFORD. 

